Waters SYNAPT G2 - Page 51

Configuring for ESI mode 3-5
Source interface door
7. Using PEEK tubing greater than or equal to 0.004-inch ID, connect
port 2 (the top port) of the diverter valve to the ESI probe.
Recommendation: To reduce peak broadening, use 0.004-inch ID tubing
for sample flow rates ≤1.2 mL/min; use 0.005-inch ID tubing for sample
flow rates >1.2 mL/min.
Requirement: When replacing tubing supplied with the instrument,
minimize the length connecting the diverter valve to the ESI probe.
Doing so minimizes delays and dispersion.
Warning: To avoid electric shock, do not use stainless steel tubing
to connect the diverter valve to the ESI probe; use the PEEK
tubing supplied with the instrument.
Source interface door.